Home / 689,535,514.35-951,579,198-376,289,918.78

Finding the Fourth Proportional to 689,535,514.35, 951,579,198 and 376,289,918.78

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Solution

The fourth proportional to 689,535,514.35, 951,579,198 and 376,289,918.78 is: 519,291,104.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,535,514.35 : 951,579,198 = 376,289,918.78 : x
  2. Step 2: Convert to fraction form
    689,535,514.35/951,579,198 = 376,289,918.78/x
  3. Step 3: Cross multiply
    689,535,514.35x = 951,579,198 × 376,289,918.78
  4. Step 4: Simplify right side
    689,535,514.35x = 358,069,659,123,399,616
  5. Step 5: Solve for x
    x = 358,069,659,123,399,616/689,535,514.35
  6. Step 6: Final answer
    x = 519,291,104.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.